Bonsoir j ai UN DM a rendre et je voudrais savoir comment faire svp

Bonsoir

Il faut d'abord que tu calcules les différentes expressions et ensuite tu colories en fonction des résultats.

Gris :

A = 0.235 x 10^-1 x 20 x 10^-3
= 4.7 x 10^-1-3
= 4.7 x 10^-4

B = (3 x 10^-2 x 11 x 10^6) / 500
= (33 x 10^-1+6) / 500
= (33 x 10^5) / 500
= 33/500 x 10^5
= 0.066 x 10^5
= 6.6 x 10^-2 x 10^5
= 6.6 x 10^-2+5
= 6.6 x 10^3

C = (3 x 10^2 x 1.2 x (10^-3)^4) / (0.2 x 10^-7)
= (3.6 x 10^2+(-3x4)) / (0.2 x 10^-7)
= (3.6 x 10^2-12) / (0.2 x 10^-7)
= (3.6/0.2) x (10^-10/10^-7)
= 18 x 10^-10+7
= 18 x 10^-3
= 1.8 x 10^1 x 10^-3
= 1.8 x 10^1-3
= 1.8 x 10^-2

D = (46 x (10^3)^2) / (2 x 10^2)
= (46 x 10^3x2) / (2 x 10^2)
= (46/2) x (10^6/10^2)
= 23 x 10^6-2
= 23 x 10^4
= 2.3 x 10^1 x 10^4
= 2.3 x 10^1+4
= 2.3 x 10^5

Jaune :

A = 46 millions x 10^-5
= 46 x 10^6 x 10^-5
= 46 x 10^6-5
= 46 x 10^1
= 4.6 x 10^1 x 10^1
= 4.6 x 10^1+1
= 4.6 x 10^2

B = (16 x 10^-3 x 3 x 10^4) / (24 x 10^-3)
= (48 x 10^-3+4) / (24 x 10^-3)
= (48/24) x (10^1/10^-3)
= 2 x 10^1+3
= 2 x 10^4

Bleu :

A = 4.7 milliers de millions
= 4.7 x 10^3 x 10^6
= 4.7 x 10^3+6
= 4.7 x 10^9

B = 2 x 10^-1 x 11 x 10^2 x 3 x 10^-4
= 66 x 10^-1+2-4
= 66 x 10^-3
= 6.6 x 10^1 x 10^-3
= 6.6 x 10^1-3
= 6.6 x 10^-2

C = (4 x (10^7)^2 x 12) / (3 x 10^11)
= (48 x 10^7x2) / (3 x 10^11)
= (48/3) x (10^14/10^11)
= 16 x 10^14-11
= 16 x 10^3
= 1.6 x 10^1 x 10^3
= 1.6 x 10^1+3
= 1.6 x 10^4

D = (11.5 x (10^3)^-1) / (0.5 x 10^-5)
= (11.5/0.5) x (10^3x(-1)/10^-5)
= 23 x (10^-3/10^-5)
= 23 x 10^-3+5
= 23 x 10^2
= 2.3 x 10^1 x 10^2
= 2.3 x 10^1+2
= 2.3 x 10^3

Vert :

A = (115 x 10^5) / (5 x (10^2)^3)         'ce n'est pas très clair au dénominateur si c'est ^3 ou ^5)
= (115/5) x (10^5/10^2x3)
= 23 x (10^5/10^6)
= 23 x 10^5-6
= 23 x 10^-1
= 2.3 x 10^1 x 10^-1
= 2.3 x 10^1-1
= 2.3 x 10^0
= 2.3

B = 66 milliers x 10^-5
= 66 x 10^3 x 10^-5
= 66 x 10^3-5
= 66 x 10^-2
= 6.6 x 10^1 x 10^-2
= 6.6 x 10^1-2
= 6.6 x 10^-1

C = (4 x (10^7)^2 x 12) / (3 x 10^11)
= (48 x 10^7x2) / (3 x 10^11)
= (48/3) x (10^14/10^11)
= 16 x 110^14-11
= 16 x 10^3
= 1.6 x 10^1 x 10^3
= 1.6 x 10^1-3
= 1.6 x 10^-2

D = 5 x (10^-2)^3 x 47 x (10^2)^-1 x 2 x 10
= 4700 x 10^-2x3 x 10^2x(-1)
= 4700 x 10^-6 x 10^-2
= 4700 x 10^-6-2
= 4700 x 10^-8
= 4.7 x 10^3 x 10^-8
= 4.7 x 10^3-8
= 4.7 x 10^-5

E = (2.5 x 10^-3 x 9 x 10^5) / (15 x 10^-4)
= (22.5 x 10^-3+5) / (15 x 10^-4)
= (22.5/15) x (10^2/10^-4)
= 1.5 x 10^2+4
= 1.5 x 10^6

Maintenant avec ces résultats, tu colories avec la couleur correspondante.
VOilà j'espère avoir pu t'aider